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Class imbalance is a problem of significant importance in applied deep learning where trained models are exploited for decision support and automated decisions in critical areas such as health and medicine, transportation, and finance. The…

机器学习 · 计算机科学 2020-12-07 Colin Bellinger , Roberto Corizzo , Nathalie Japkowicz

Semantic segmentation, which refers to pixel-wise classification of an image, is a fundamental topic in computer vision owing to its growing importance in robot vision and autonomous driving industries. It provides rich information about…

计算机视觉与模式识别 · 计算机科学 2021-03-23 Khwaja Monib Sediqi , Hyo Jong Lee

Real-world data often follow a long-tailed distribution as the frequency of each class is typically different. For example, a dataset can have a large number of under-represented classes and a few classes with more than sufficient data.…

计算机视觉与模式识别 · 计算机科学 2020-08-11 Peng Chu , Xiao Bian , Shaopeng Liu , Haibin Ling

In recent years, video semantic segmentation has made great progress with advanced deep neural networks. However, there still exist two main challenges \ie, information inconsistency and computation cost. To deal with the two difficulties,…

计算机视觉与模式识别 · 计算机科学 2023-04-19 Jinming Su , Ruihong Yin , Shuaibin Zhang , Junfeng Luo

Semantic segmentation is one of the basic topics in computer vision, it aims to assign semantic labels to every pixel of an image. Unbalanced semantic label distribution could have a negative influence on segmentation accuracy. In this…

计算机视觉与模式识别 · 计算机科学 2019-11-27 Shuangting Liu , Jiaqi Zhang , Yuxin Chen , Yifan Liu , Zengchang Qin , Tao Wan

Semantic segmentation datasets often exhibit two types of imbalance: \textit{class imbalance}, where some classes appear more frequently than others and \textit{size imbalance}, where some objects occupy more pixels than others. This causes…

计算机视觉与模式识别 · 计算机科学 2023-10-31 Zifu Wang , Maxim Berman , Amal Rannen-Triki , Philip H. S. Torr , Devis Tuia , Tinne Tuytelaars , Luc Van Gool , Jiaqian Yu , Matthew B. Blaschko

Data for face analysis often exhibit highly-skewed class distribution, i.e., most data belong to a few majority classes, while the minority classes only contain a scarce amount of instances. To mitigate this issue, contemporary deep…

计算机视觉与模式识别 · 计算机科学 2019-05-01 Chen Huang , Yining Li , Chen Change Loy , Xiaoou Tang

Despite the recent success of deep neural networks, it remains challenging to effectively model the long-tail class distribution in visual recognition tasks. To address this problem, we first investigate the performance bottleneck of the…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Songyang Zhang , Zeming Li , Shipeng Yan , Xuming He , Jian Sun

Semi-supervised semantic segmentation aims to learn from a small amount of labeled data and plenty of unlabeled ones for the segmentation task. The most common approach is to generate pseudo-labels for unlabeled images to augment the…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Rui Chen , Tao Chen , Qiong Wang , Yazhou Yao

Coarsely-labeled semantic segmentation annotations are easy to obtain, but therefore bear the risk of losing edge details and introducing background pixels. Impeded by the inherent noise, existing coarse annotations are only taken as a…

计算机视觉与模式识别 · 计算机科学 2021-07-27 Jingchao Liu , Ye Du , Zehua Fu , Qingjie Liu , Yunhong Wang

Despite advances in multilingual neural machine translation (MNMT), we argue that there are still two major challenges in this area: data imbalance and representation degeneration. The data imbalance problem refers to the imbalance in the…

计算与语言 · 计算机科学 2023-10-26 Wen Lai , Alexandra Chronopoulou , Alexander Fraser

Scale-permuted networks have shown promising results on object bounding box detection and instance segmentation. Scale permutation and cross-scale fusion of features enable the network to capture multi-scale semantics while preserving…

计算机视觉与模式识别 · 计算机科学 2021-03-24 Abdullah Rashwan , Xianzhi Du , Xiaoqi Yin , Jing Li

Keypoint detection and description is fundamental yet important in many vision applications. Most existing methods use detect-then-describe or detect-and-describe strategy to learn local features without considering their context…

计算机视觉与模式识别 · 计算机科学 2020-06-02 Siyu Hong , Kunhong Li , Yongcong Zhang , Zhiheng Fu , Mengyi Liu , Yulan Guo

Future advancements in robot autonomy and sophistication of robotics tasks rest on robust, efficient, and task-dependent semantic understanding of the environment. Semantic segmentation is the problem of simultaneous segmentation and…

计算机视觉与模式识别 · 计算机科学 2016-06-06 Md. Alimoor Reza , Jana Kosecka

Semantic image segmentation is an important computer vision task that is difficult because it consists of both recognition and segmentation. The task is often cast as a structured output problem on an exponentially large output-space, which…

计算机视觉与模式识别 · 计算机科学 2017-09-07 Payman Yadollahpour

Deep neural networks are susceptible to learn biased models with entangled feature representations, which may lead to subpar performances on various downstream tasks. This is particularly true for under-represented classes, where a lack of…

计算机视觉与模式识别 · 计算机科学 2021-11-02 Sanghyeok Chu , Dongwan Kim , Bohyung Han

Existing reasoning segmentation approaches typically fine-tune multimodal large language models (MLLMs) using image-text pairs and corresponding mask labels. However, they exhibit limited generalization to out-of-distribution scenarios…

计算机视觉与模式识别 · 计算机科学 2025-05-30 Song Wang , Gongfan Fang , Lingdong Kong , Xiangtai Li , Jianyun Xu , Sheng Yang , Qiang Li , Jianke Zhu , Xinchao Wang

The research in self-supervised domain adaptation in semantic segmentation has recently received considerable attention. Although GAN-based methods have become one of the most popular approaches to domain adaptation, they have suffered from…

计算机视觉与模式识别 · 计算机科学 2023-04-18 Thanh-Dat Truong , Chi Nhan Duong , Pierce Helton , Ashley Dowling , Xin Li , Khoa Luu

We propose a method for high-performance semantic image segmentation (or semantic pixel labelling) based on very deep residual networks, which achieves the state-of-the-art performance. A few design factors are carefully considered to this…

计算机视觉与模式识别 · 计算机科学 2016-04-18 Zifeng Wu , Chunhua Shen , Anton van den Hengel

Deep learning usually achieves the best results with complete supervision. In the case of semantic segmentation, this means that large amounts of pixelwise annotations are required to learn accurate models. In this paper, we show that we…

计算机视觉与模式识别 · 计算机科学 2020-05-07 Yi Zhu , Zhongyue Zhang , Chongruo Wu , Zhi Zhang , Tong He , Hang Zhang , R. Manmatha , Mu Li , Alexander Smola